Pneumatic separator



W. G. JOPSON.

PNEUMATIC SEPARATOR.

APPLICATION FILED SEPT. 2!. 191a.

Patented Aug. 5, 1919.

2 SHEETS-SHEET 8 nwmtoz W. G. JOPSON.

PNEUMATIC SEPARATOR.

APPLICATION FILED SEPT. 2|. I918.

1 ,3 1 1 ,973. Patented Aug. 5, 1919.

2 SHEET$-SHEET 2.

' '20 wuentoz alto-nut,

UNITED sTATEs PATENT oEEIoE.

WILLIAM GEORGE JOPSON, 0E ABINGTON, MASS CHUSETTS, Assreiv'on To ANGLO-AMERICAN TEXTILE MACHINERY COMPANY, 013 BOSTON, MASSACHUSETTS, A

CORPORATION OF MASSACHUSETTS.

' PNEUMATIC SEPARATOR.

To all whom it may concern:

Be it known that I, VILLIAM GEORGE J Olson, a subject of the King of theUnited Kingdom of Great Britain and Ireland, residing at Abington, inthe county of Plymouth and State of Massachusetts, have invented new anduseful Improvements in Pneumatic Separators, of which the following is aspecification.

This invention relates, generally, to means for separating'fibers, andthe like, from a current of air in which dust and refuse are present,and has particular reference to a separator for pneumatic card-strippingor card cleaning apparatus for separating from the dust or refuse, thecotton or other salable waste material which adheres to the cardclothing or which is embedded therein or lying thereon, and which isdrawn therefrom, by pneumatic means through a pipe or the like.

In stripping devices now in general use the cotton, or other salablewaste material, is separated from the dust and refuse by drawing the aircarrying these products through a canvas cylinder, or the like, so as tofilter out the fibers, but this method is open to the objections that itis not economical and efficient, and the cotton, or other salable waste,has a tendency to become curled and matted, thus reducing the value ofthe same.

It is the object of the present invention to provide an improvedseparator which is simple in construction, efficient in operation and bymeans of which the cotton is separated without being curled or matted,and this latter feature is of great importance as the cotton Waste is ofgreater value if it is not curled.

- -The above and other objects of my invention are obtained in theembodiment described in the following speclfication and illustrated inthe accompanying drawings, but it is to beunderstood that the presentembodiment is disclosed by Way of illustration only and that theinvention is not re- Specification of Letters Patent.

Patented Aug. 5, 1919.

Application filed September 21, 1918. Serial No. 255,029.

In the accompanying drawing,

Figure 1 is a side elevational view of my improved separator with aportion thereof broken away for purposes of illustration.

Fig. 2 is a sectional view showing the deflector .in elevation.

Fig. 3 is an enlarged side elevational view leading from the card room,it being understood by those familiar with the art that the end of thispipe has a nozzle or the like, the aperture of which is in closeproximity to the cards or carding cylinder. The pipe 10 delivers into aunion or coupling 11 from the 1 outlet end of which leads a pipe 12 to adust filtering device hereinafter described and the coupling has abranch provided with an opening 13 Which delivers into the topcompartment or chamber 14: of a tank 15; will be seen from Fig. 1, thetank is divided into the cotton receiving chamber 14 and a dust chamber16 by means of a horizontal partition 17.

The chamber within the coupling 11 is of greater cross-sectional areathan the pipe 10 and within this chamber and leading from the inlet endof the coupling 11 into the branch opening 13 is a deflector comprisinga curved plate 18, the plate being preferably formed of sheet metal andbeing of less width than the chamber of the coupling so as to providespaces 19 through which the air current, together with the dust andlight refuse carried thereby, is

adapted to ass about the plate or chute 18. Preferably, the chute 18increases in width toward its lower end. The deflector 18 is employed todeflect the cotton or other salable waste into the chamber 14%, and toincrease the eflieiency of the device the concave face of the deflector,that is, that face which is opposed to the incoming current of air, ishighly polished. The degree' of polish upon the deflecting surfacemayvary but I-have found that the higher the degree of=polish, the lessis the coeflicient of V friction between the cotton and this surface andtherefore the greater the efiiciency.

The angle between the deflecting surface and the longitudinal center ofthe pipe 10, and the radius of curvature and the size of the deflectormay vary in accordance with the requirements of the particular machlne,but I have foundthe best results are obtainedby making the deflector ofgreater width than the opening through the conduit or pipe 10 andbybending the edges 20 of the defiector:=at right angles: to' thepolished surface so ithat the deflector is channel shape inC1OSSS8GtlO11,'aS most clearly shown 7 in Fig. 4. To avoid any shouldersthat would impedethe escaping dust, the posterior end of the chamberwithin the coupling- 1'1 slopescconically toward the conduit 12, andthis conduit is of greater diameter than the pipe 10. V The pipe 12 maylead toany suitable de vice for removing the dust from'the air, butforzillustrative purposes, I have shown the pipe 12 leading to the dustchamber 16 within which :is mounted a cloth covered vcylinder 21' whichcylinder may be rotated zbya handle 22. Extending into the interior ofthe-cylinder 21 and forming a bearing for one enduofthe same-is a pipe23 which c-leads to a suitable suction device (not qshown). "Inengagement with the exterior surfacegof the filtering cylinder 21 is abrush '24 which when thecylinder is rotated, wipes the dust therefrom.The cotton which collflects within the chamber 14% and the dust whichcollects within the chamber 16 may be removed atthe doors 25 and26,rrespec 40tively. V r The: operation. of the device will be read-;ily understood from the foregoing descrip- :'tion. When thesuctiondevice (not shown) to which pipe 23 leads is set into operation, acurrent of air is drawn from the card 'room' through: the pipelO intothe coupling 11 where the current strikes the pol- :ished surface of thedeflector '18 with the result that the cotton and'dust entrained yin theair currentare momentarily retarded, ithe cotton being deflected so astofall into the cotton receiving-chamber 14, and the p a dust, =which islighter than "the cotton, be-

ing drawn around the edges'of the deflector -and through the zpipe l2'tothe dust chamber 16. The a-ir'passes from the exterior of :the.filtering cylinder 21 to the interior thereof, leavingthe dust depositedon the exterior surface of the cylinder from which it isrwiped bythebrush 24 whenthe cylinder isrotated. It will be seen from thedrawings that the pipe 12 is of larger di-' with the cotton receivingchamber of the tank 15, and these points are of advantage as a state ofvacuum or rarefaction is maintained in the chamber 1 1 which assists thefalling of the cottonjorother salable waste.

1 have found that any improved apparatus is very efficient in operationas'it sepa .rates practically .all of the cotton orother salable wastefrom the air current, and the dust entrained therein, and during theseparating operation there is no tendency 'for the cotton ;or waste tobecome curled or matted.

What I claim is: V

1. In an apparatus for the purposede-' scribed, the combination of aconduit through which a current of air is induced I lncludlng' aseparating chamber of enlarged cross section having inlet and outletopenings in opposlteend Walls and a lateral outlet in a side Wall, aIGCB1V6I" communicating with the last said outlet, anda deflecting 7.plate of less Width than the chamber ar- 7 ranged therein and'extendingcontinuously from the inlet to said lateral outlet.

2. In an apparatus for the purpose described, the combination ofaconduit ings in opposite end walls and a lateral out-r let in asidewall, and a'defiecti ngo'plate arranged within. said chamberbetweenthe in- :through which a current of air is induced 7 ncluding a separatng chamber of enlarged cross sectlon having inlet and outlet openthecombination of a conduit' through which a current of: air is induced rincluding a separating chamber ,of-enlarged cross section-having inletand outlet'openlet and lateral outlet thereof, said plate being-of lesswidth than the chamber: and

wider than theinlet'thereto and gradually which its widest end extends.

increasing in width toward said 'outletinto '4. In an apparatus for thepurpose de scribed, the combination of a conduit through which a currentof air is induced including a separatmg chamber of enlarged crosssection having inlet and outlet gopenings in opposlte end walls and alateral outlet in a'sidewall, and a'deflectingplata of less width thanthe chamber and of channel formin cross section, extending continuouslvfrom the end of the chamber in which 5. In an apparatus for the purposedethe inlet is "formed to said 'lateral outlet, with itschannel'towardthe inlet."

scribed, the combination of a conduit through which a current of air isinduced including a separating chamber of enlarged cross section havinginlet and outlet openings in its end walls and a lateral outlet in aside wall, and a curved deflecting plate, of less width than thechamber, extending between the inlet and lateral outlet thereof andhaving it concave surface toward the inlet highly polished.

6. In an apparatus for the purpose described, the combination of aconduit through which a current of air is induced including a separatingchamber of enlarged cross section having inlet and outlet openings inits end walls and a branch outlet through its bottom, a receivingchamber arranged below and communicating with the branch outlet of theseparating chamber, and a deflector within the separating chambercomprising a metal plate extending from the inlet end of the chamber tothe branch outlet thereof, and having its side edges bent toward theinlet end of the chamber, the width of said deflector being greater thanthat of the inlet and less than the chamber in which it is arianged.

7. In a device of the class described, a conduit through which a currentof air is induced, a separating chamber in said conduit and having abranch opening, the portion of said conduit leading to said chamberbeing of less cross section than said chamber and the portion of theconduit lead ing therefrom, a receiving chamber into which said branchopening delivers, and a deflector in said separator chamber fordeflecting the fibers in the air current into the cross section of theseparating chamber and having its exposed surface olished and increasingin Width toward the 1 ranch opening, the edges of said deflector beingturned toward the incoming current.

8. In a device of the class described, a conduit through which a currentof air is induced, a separating chamber in said conduit and having abranch opening, the portion of said conduit leading to said chamberbeing of less cross section than said chamber and the portion of theconduit leading therefrom, a receiving chamber into which said branchopening delivers, and a deflector in said separator chamber fordeflecting the fibers in the air current into said receiving chamber,said deflector comprising a plate having its exposed surface polishedand increasing in width toward the branch opening, the side edges ofsaid plate being turned toward the anterior portion of the conduit, saidplate being in cross section not less than the branch opening andanterior portion of the conduit but being narrower than the separatingchamber and posterior portion of the conduit.

In testimony whereof I have hereunto set my hand.

WILLIAM GEORGE J OPSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). 0.

